108 / | HD | HORIZONTALLY SUPPORTED PLANAR SURFACES |
59 | DF | PLURAL RELATED HORIZONTAL SURFACES {11} |
106 | DF | .~ Vertically adjustable {1} |
107 | .~.~ Removably mountable in plural positions {2} | |
108 | DF | .~.~.~> Cantilever support {1} |
110 | DF | .~.~.~> Interlocked with surface configuration of support |